Lens



FIG. 1 is a perspective left side view of the lens;

FIG. 2 is a perspective right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof.

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view therefor;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof. 

CLAIM The ornamental design for a lens, as shown and described. 